issue solved, thank you
A few errors, I found.
1 - You need a pagination link first (make it a child of root and it's self)
2 - Next add the link selector (like you did) but also make it a child of the Pagination link
3 - You don't need an element selector on the details page, just select the text fields you want
This will work. I didn't have time to add all the fields you wanted from the main details page so you'll need to add them back in. However, it works
{"_id":"wuzzle-fix","startUrl":["https://wuzzuf.net/search/jobs/?start=0&filters[country][0]=Egypt&filters[country][1]=Saudi%20Arabia&filters[country][2]=United%20Arab%20Emirates&filters[country][3]=Bahrain&filters[country][4]=Kuwait&filters[country][5]=United%20States&filters[country][6]=China&filters[country][7]=Oman"],"selectors":[{"id":"Pegination","type":"SelectorLink","selector":"ul.pagination.desktop-pagination li.pag-next a","parentSelectors":["_root","Pegination"],"multiple":false,"delay":0},{"id":"Link Selector","type":"SelectorLink","selector":"h2.job-title a","parentSelectors":["_root","Pegination"],"multiple":true,"delay":0},{"id":"Title","type":"SelectorText","selector":"h1.job-title","parentSelectors":["Link Selector"],"multiple":false,"regex":"","delay":0},{"id":"Company","type":"SelectorText","selector":"a.job-company-name","parentSelectors":["Link Selector"],"multiple":false,"regex":"","delay":0},{"id":"Location","type":"SelectorText","selector":"span.job-company-location span","parentSelectors":["Link Selector"],"multiple":false,"regex":"","delay":0},{"id":"Experience Needed","type":"SelectorText","selector":"tr:nth-of-type(1) td:nth-of-type(1) dd","parentSelectors":["Link Selector"],"multiple":false,"regex":"","delay":0},{"id":"Career Level","type":"SelectorText","selector":"tr:nth-of-type(1) td:nth-of-type(2) dd","parentSelectors":["Link Selector"],"multiple":false,"regex":"","delay":0},{"id":"About the Job","type":"SelectorText","selector":"div.about-job ul:nth-of-type(1)","parentSelectors":["Link Selector"],"multiple":false,"regex":"","delay":0},{"id":"Requirements","type":"SelectorText","selector":"div.job-requirements","parentSelectors":["Link Selector"],"multiple":false,"regex":"","delay":0}]}
Thank you so much for your help, u really helped me today. Again thank you. 
Wish you happiness and more knowledge...